If they've been transferred to a DVD-Video disc (and you're playing them on a set-top DVD player and TV?) then the photos will no longer be high resolution. The maximum resolution will be 720x480 pixels, if it's an NTSC (American) DVD-Video disc.

If they're on a DVD data disc, they might still be high resolution - it depends.

Naturally, to take advantage of Blu-ray, you want high(er) resolution - although bear in mind, even from a Blu-ray video disc, playing into an HD TV, they'll still only be a maximum resolution of 1920x1080 pixels.

How/where do you play this DVD disc currently, to view these photos?_________________Martin at HeadSpin HD now on Blu-ray

This is becoming more of a specialized service, you won't find Costco or Wal-Mart doing this anymore. There is no reason they can't be rescanned in a higher resolution. Now if you pop your DVD in your computer you might find it's a DVD & Data disc then you can see if the scanned data images are better resolution. Taking what you have and transferring it to BluRay will just give you a BluRay compatible disc not anything better resolution unless the disc has high res scans on it already._________________iMac 24" 2.4 GHz 4GB | Logitech S530 | Z-2300 speakers | NewerTech Guardian MAXimus RAID
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They don't look that bad using an old tube tv - that fits the 480i of a DVD -- but i have stored away my old TV and only have Hi Def TV's in use --

i found a place on the web who will scan them in 4k rez but they put them in Jpeg form on anything you want -- even Bluray -- but i wonder if going to Jpeg will down rez them -- i guess i'll give it a try on a small batch --